Finding the Fourth Proportional to 873,618.26, 1,205,393.74 and 491,505.62
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Solution
The fourth proportional to 873,618.26, 1,205,393.74 and 491,505.62 is: 678,165.53
Step by Step Solution
- Step 1: Write the proportion equation
873,618.26 : 1,205,393.74 = 491,505.62 : x - Step 2: Convert to fraction form
873,618.26/1,205,393.74 = 491,505.62/x - Step 3: Cross multiply
873,618.26x = 1,205,393.74 × 491,505.62 - Step 4: Simplify right side
873,618.26x = 592,457,790,267.09 - Step 5: Solve for x
x = 592,457,790,267.09/873,618.26 - Step 6: Final answer
x = 678,165.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.